• Webster's Revised Unabridged Dictionary
    • n Photopsia (Med) An affection of the eye, in which the patient perceives luminous rays, flashes, coruscations, etc. See phosphene.
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Century Dictionary and Cyclopedia
    • n photopsia The condition of having the sensation as of light or of flashes of light without external cause.
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Chambers's Twentieth Century Dictionary
    • n Photopsia fō-top′si-a the condition of having the sensation of light without external cause
    • Photopsia Also Phō′topsy
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. fw^s fwto`s, light + sight